The StumbleUpon service is a bookmark and social networking framework that suggests new sites you may be interested in seeing based on your interest and the interests of other StumbleUpon users.
The toolbar allows registered users to bookmark a positive or negative vote for any web page they visit. This information allows the service to calculate interests and preferences using collaborative information from other users. Users may create a friends network and are automatically matched with recommended friends based on similar preference matches. Community groups provide for social communities based on a specific interest niche and users may also specificy in their profile motivations for participation such as Websurfing, Friends, Dating, Business, and Community.
The service encourages personalization and identity by limiting certain friends and search features to those members that have completed their personal profile and picture.
The Stumble Video provides similar web link logic to the task of finding public video that matches a users interests. Since StumbleUpon has a wealth of personal preference information that cana be filtered against other user interests this tool is an excellent method of discovering interesting video online.
